core-it-support/core-it-plugins/maven-it-plugin-project/src/main/java/org/apache/maven/plugin/coreit/AbstractPomMojo.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.plugin.coreit;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.Component;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.MavenProjectBuilder;

/**
 * @author Benjamin Bentmann
 */
public abstract class AbstractPomMojo extends AbstractMojo {

    /**
     * The project builder.
     */
    @Component
    protected MavenProjectBuilder builder;

    protected void dump(Properties props, String key, MavenProject project) {
        put(props, key + "project.id", project.getId());
        put(props, key + "project.name", project.getName());
        put(props, key + "project.description", project.getDescription());
        if (project.getArtifact() != null) {
            put(props, key + "artifact.id", project.getArtifact().getId());
        }
    }

    protected void put(Properties props, String key, Object value) {
        if (value != null) {
            props.setProperty(key, value.toString());
        }
    }

    protected void store(Properties props, File file) throws MojoExecutionException {
        try {
            file.getParentFile().mkdirs();

            try (FileOutputStream os = new FileOutputStream(file)) {
                props.store(os, "[MAVEN-CORE-IT-LOG]");
            }
        } catch (IOException e) {
            throw new MojoExecutionException("Failed to dump POMs: " + e.getMessage(), e);
        }
    }
}